MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5ec2107b1399b50f3ed23e72228f1a74ab9898191a23431c8a4cbff7b73af998. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


Formbook


Vendor detections: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5ec2107b1399b50f3ed23e72228f1a74ab9898191a23431c8a4cbff7b73af998
SHA3-384 hash: a0a3f9fe3521b7194fc1579375eecf5e632cc9e1238801425377328891d10b453121b36d9b2fb133f8e6ebb3b68f2768
SHA1 hash: db99538e5ba1e63d897fd00243019ce05804a451
MD5 hash: 68c1ca3005bddc3a6e204f1aeb1b2672
humanhash: sink-india-steak-illinois
File name:2kkjU28rSd7lLwC.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:519'680 bytes
First seen:2021-12-21 16:13:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:NxcBuSK3ZeQt9St0bz6mGYbQZDMKOpmtpAxDG7:NCUSK3ZeQt9SKaCmt6x
TLSH T148B4AD8232AC6B26E7BD77F569B8935077B07C662823D28E1EC871CA1476B414D70F27
Reporter malwarelabnet
Tags:exe FormBook xloader

Intelligence

File Origin
# of uploads :
1
# of downloads :
209
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2kkjU28rSd7lLwC.exe
Verdict:
Malicious activity
Analysis date:
2021-12-21 16:15:07 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/924e9c86-c88a-4196-8d80-0941504e443b

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/215677/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file
Сreating synchronization primitives
Searching for synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Creating a window
DNS request
Unauthorized injection to a recently created process
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/61c1fd4dec6c6c14a9e7e279/reports/6bf93410-fc62-4dc7-bc86-e3ebeefe662c/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/147178d2-d426-467c-834f-661ed0acb30e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/911076
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 543554 Sample: 2kkjU28rSd7lLwC.exe Startdate: 21/12/2021 Architecture: WINDOWS Score: 100 42 Found malware configuration 2->42 44 Malicious sample detected (through community Yara rule) 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 5 other signatures 2->48 9 2kkjU28rSd7lLwC.exe 3 2->9         started        process3 file4 30 C:\Users\user\...\2kkjU28rSd7lLwC.exe.log, ASCII 9->30 dropped 50 Tries to detect virtualization through RDTSC time measurements 9->50 52 Injects a PE file into a foreign processes 9->52 13 2kkjU28rSd7lLwC.exe 9->13         started        signatures5 process6 signatures7 54 Modifies the context of a thread in another process (thread injection) 13->54 56 Maps a DLL or memory area into another process 13->56 58 Sample uses process hollowing technique 13->58 60 Queues an APC in another process (thread injection) 13->60 16 cscript.exe 13->16         started        19 explorer.exe 13->19 injected process8 signatures9 34 Self deletion via cmd delete 16->34 36 Modifies the context of a thread in another process (thread injection) 16->36 38 Maps a DLL or memory area into another process 16->38 40 Tries to detect virtualization through RDTSC time measurements 16->40 21 explorer.exe 152 16->21         started        24 cmd.exe 1 16->24         started        26 explorer.exe 1 149 16->26         started        process10 dnsIp11 32 192.168.2.1 unknown unknown 21->32 28 conhost.exe 24->28         started        process12
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/5ec2107b1399b50f3ed23e72228f1a74ab9898191a23431c8a4cbff7b73af998/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-12-21 15:26:22 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
19 of 28 (67.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=l3bba6yttg2q6pwshzzcfdy2osvzrgazdirughekjs77pnz27gma._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Result
Malware family:
xloader
Create hunting rule
Score:
  10/10
Tags:
family:xloader campaign:9mj8 loader rat suricata
Link:
https://tria.ge/reports/211221-tpm98segel/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Deletes itself
Blocklisted process makes network request
Xloader Payload
Xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
Unpacked files
SH256 hash:
13ed93c21986148c296695024a2fcab4a8928d4f147549064a63f15607517088
MD5 hash:
f74318326e0982fba8b8959a664cb1e5
SHA1 hash:
f85e9cd29c74cc442c438d95cdddbced18c7067d
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/4822c2d9-61f4-47f4-b04d-7cba80a9bcdc/
Parent samples :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 hash:
fde1c5038e059d2c6c230d87b8e83b78d0200602a5652508f85442b9a36f7c4a
MD5 hash:
271eb0093d74cedf800de206dcc0b0a5
SHA1 hash:
1e2a4335312a0bfda7f0aae3218fe6cff5ddc3b5
Link:
https://www.unpac.me/results/4822c2d9-61f4-47f4-b04d-7cba80a9bcdc/
SH256 hash:
9f5763966bacdc6de3944a6e06a49b05869c38f2e98b32cb93b483a480a6ffff
MD5 hash:
3418c620c4b9dd4533a88f1ba5ec3ff1
SHA1 hash:
12f6aaf1c90030c4063d42a27b2e7000a08b6e74
Link:
https://www.unpac.me/results/4822c2d9-61f4-47f4-b04d-7cba80a9bcdc/
SH256 hash:
5ec2107b1399b50f3ed23e72228f1a74ab9898191a23431c8a4cbff7b73af998
MD5 hash:
68c1ca3005bddc3a6e204f1aeb1b2672
SHA1 hash:
db99538e5ba1e63d897fd00243019ce05804a451
Link:
https://www.unpac.me/results/4822c2d9-61f4-47f4-b04d-7cba80a9bcdc/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5ec2107b1399b50f3ed23e72228f1a74ab9898191a23431c8a4cbff7b73af998

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/215677/

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